This is a fixed dollar amount field. Ads that have a current day CPI or CPC (depending on ad type, as above) that exceeds the dollar amount you set here will be paused.

Maximum spend without install

Expressed as a percentage of your Ad Set Group or Account cost-per average, whichever is lower.

For example, if your average is $2.15 for the day, and your setting is 200%, your maximum spend with no conversion would be $4.30.

Maximum over average CPI/CPC for new Ads

Expressed as a percentage of your Ad Set Group or Account's real-time average CPI or CPC (depending on objective).

For Example, if your average is $2.15 for the day, and your setting is 20%, your maximum CPI or CPC would be $2.58. A higher figure should be used for new Ads with less than 25 clicks or installs.

Maximum over average CPI/CPC for established Ads

Expressed as a percentage of your Ad Set Group or Account's real-time average CPI or CPC (depending on objective). Example, if your average is $2.15 for the day, and your setting is 20%, your maximum CPI or CPC would be $2.58. A lower figure should be used for new Ads with 25 or more clicks or installs.

For example, if your average is $2.15 for the day, and your setting is 20%, your maximum CPI or CPC would be $2.58. A lower figure should be used for new Ads with 25 or more clicks or installs.

Use looser rules for Ads with good ROAS and/or Cost per Revenue Event.

Looser rules can be used for Ads that have a history of good ROAS or Cost Per Revenue Event.

First, make sure you've told AdRules what columns to look at for your revenue events in Settings > Revenue Events. Ads with less than average Cost Per Revenue Event or at least 85% average ROAS are considered good.

Number of Retries

Ads that are paused for bad intraday performance will be retried the next day, and continue being retried until the maximum number of retries is reached.